Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!samsung!usc!wuarchive!zaphod.mps.ohio-state.edu!caen!hellgate.utah.edu!dog.ee.lbl.gov!ucsd!qualcom.qualcomm.com!cancun.qualcomm.com!rdippold From: rdippold@cancun.qualcomm.com (Ron Dippold) Newsgroups: comp.dcom.modems Subject: Re: Using High Speed Modems Message-ID: <1991May23.193607.14738@qualcomm.com> Date: 23 May 91 19:36:07 GMT References: <28675@uflorida.cis.ufl.EDU> <6536@vela.acs.oakland.edu> Sender: news@qualcomm.com Distribution: na Organization: Qualcomm, Inc., San Diego, CA Lines: 13 Nntp-Posting-Host: cancun.qualcomm.com In article <6536@vela.acs.oakland.edu> rdthomps@vela.acs.oakland.edu (Robert D. Thompson) writes: > Do modems with V.42 compression cause compressed files (e.g. > PKZIP, LHARC, etc...) to become effectively larger when > transferred? In other words, is there negative compression > when transferring a compressed file via V.42? First, V.42 is only error correction, V.42bis is compression. However, V.42 is smart enough to realize when the compression is causing the data to expand and will send the data un"compressed". -- Standard disclaimer applies, you legalistic hacks. | Ron Dippold